The following changes can be made to /system/build.prop to make the device function a "bit better" on non-Verizon networks (eg. disable LTE if you don't have it, and fast dormancy for providers like Rogers that don't support it.):
Parameters should be self explanatory!
ro.mot.ds.fastdormancy.disable=true telephony.lteOnCdmaDevice=0 ro.telephony.default_network=3